BA 8061 then QR 4702 at Barcelona
London Gatwick → Barcelona → Geneva
Timetable, Barcelona time
16:15BA 8061 from London Gatwick at the gate
15:15QR 4702 to Geneva leaves the gate
23 h apart on the timetable, overnight
QR 4702 leaves 23 h after BA 8061 arrives on the timetable: more than half a day, so not a connection we count.